Having entered the instance dungeon located inside the subway, Jinwoo levels up time and time again by fighting waves of magic beasts. As he gradually makes his way forward, he finds a long stairway leading deeper underground.

While the C-Rank dungeon raid by Jinwoo and the others seems to be progressing well, the moment they step into an area covered in mana stones with a sleeping dungeon boss, things take a wrong turn.

Jinwoo survives tragedy once again, but Woo Jinchul warns him that Hwang Dongsoo, an S-Rank hunter, may be after his life. Determined to grow stronger, Jinwoo teams up with Jinho to raid a succession of C-Rank dungeons, but they attract attention...

Drained from endless battle, Jinwoo sees a phantom of his past self. To overcome his own past as the Weakest Hunter of All Mankind, he struggles to find a way to clear the job-change quest.

After a scheduled meeting with Jinah's teachers, Jinwoo is asked to talk to one of her classmates, Han Song-yi, who is working as a hunter. In an effort to show her the harsh reality of the job, Jinwoo takes her to a raid designated for new hunters of the White Tiger guild.

The Hunters Guild strike team is confronting the high orc shaman Kargalgan when Jinwoo crashes the fight.

As the S-Rank hunters continue fighting, they're confronted by a new magic beast resembling a humanoid ant.

After no shortage of hardship, the 4th Jeju Island raid comes to a close. But for Jinwoo, the hunt never ends.